Abstract: The present invention pertains novel coiled tubing units and methods of stabbing. The coiled tubing unit has a tubing reel; a tubing guide operably connected to the tubing reel; and an injector operably connected to the tubing guide. The injector is configured to move toward or away from the tubing reel. This advantageously allows for more convenient, effective, and/or potentially safer stabbing methods to be employed.

Abstract: The present invention pertains novel coil tubing units and methods of stabbing. The coiled tubing unit has a tubing reel; a tubing guide operably connected to the tubing reel; and an injector operably connected to the tubing guide. The injector is configured to move toward or away from the tubing reel. This advantageously allows for more convenient, effective, and/or potentially safer stabbing methods to be employed.

Abstract: An auxiliary dolly attachable to the rear of a primary trailer includes a first portion attachable to the primary trailer, a second portion comprising one or more axles with wheels, and a pivot point at which the first portion is coupled to and movable relative to the second portion, and further includes one or more cylinders configured to adjust the first and second portions relative to each other and apportion weight between the primary trailer and the auxiliary dolly.

Abstract: The present application pertains to a coiled tubing injector system. The system comprises a coiled tubing injector; an injector tilt configured to be mounted to a trailer wherein the injector tilt is configured to receive the coiled tubing injector; a securing mechanism to secure the coiled tubing injector to the injector tilt; and a sensor configured to detect whether the securing mechanism is positioned to substantially secure the coiled tubing injector to the injector tilt. Advantageously, the system is configured such that the injector can only be tilted if the sensor detects that securing mechanism is positioned to substantially secure the coiled tubing injector to the injector tilt.

Abstract: A flapper check valve employed to prevent flow up the work string while allowing flow down the work string and into the well is disclosed. The check valve is activated by a compression spring, which then acts on a ball which will further act on a cam profile attached to the back of a flapper. The apparatus causes the flapper to default to the closed position when the flow is stopped, regardless of the position of the valve, even when gravity is acting against the flapper. The compression spring also allows for an apparatus which possesses lower operating stresses on the spring.

Abstract: A variable sized coiled tubing counter is described herein. The variable sized coiled tubing counter includes a plurality of rollers. At least one roller is a floating roller which is allowed to travel and may be connected to a tension assembly. The variable sized tubing counter typically includes a counter which is rotationally connected to a floating counting roller using a somewhat flexible axle. As coiled tubing passes through the tubing counter, the length of tubing is determined based on the number of rotations of the counting roller. The use of floating, tensioned rollers allows the disclosed tubing counter to be utilized with multiple diameters of coiled tubing without significant adjustment to the tubing counter or changing components of the tubing counter.

Abstract: The present invention pertains novel coil tubing units and methods of stabbing. The coiled tubing unit has a tubing reel; a tubing guide operably connected to the tubing reel; and an injector operably connected to the tubing guide. The injector is configured to move toward or away from the tubing reel. This advantageously allows for more convenient, effective, and/or potentially safer stabbing methods to be employed.

Abstract: A flapper check valve employed to prevent flow up the work string while allowing flow down the work string and into the well is disclosed. The check valve is activated by a compression spring, which then acts on a ball which will further act on a cam profile attached to the back of a flapper. The apparatus causes the flapper to default to the closed position when the flow is stopped, regardless of the position of the valve, even when gravity is acting against the flapper. The compression spring also allows for an apparatus which possesses lower operating stresses on the spring.

Abstract: The present invention pertains novel coiled tubing units and methods of stabbing. The coiled tubing unit has a tubing reel; a tubing guide operably connected to the tubing reel; and an injector operably connected to the tubing guide. The injector is configured to move toward or away from the tubing reel. This advantageously allows for more convenient, effective, and/or potentially safer stabbing methods to be employed.

Abstract: A bit jet enhancement tool is provided, the tool comprises two or more separate flow paths, each of the flow paths has multiple hollow chambers connected in series; each of the hollow chambers comprises a first constricted chamber with a fluid entry, a first expansion chamber located adjacent to the lower end of the first constricted chamber, a second constricted chamber with the upper end of connected to the lower end of the first expansion chamber; a separate second expansion chamber connected to the lower end of a plurality of the second constricted chambers; a single port located adjacent to the lower end of the second expansion chamber.

Abstract: The Mill-Right system is a hydraulic control system that optimizes drilling performance by controlling speed and force at the drill bit. It controls 3 drilling parameters through integrated software. 1) Weight on Bit (WOB); 2) Rate of Penetration (ROP); and 3) Differential Pressure (DP).

Abstract: A coiled tubing injector apparatus for inserting and/or removing coiled tubing from a well head comprising a first injector column and a second injector column forming a central pathway within a frame. The first and second injector columns each comprise an inner and outer band, the outer band containing a plurality of rolling elements for engaging the coiled tubing and the inner band creating drive force to energize the outer band. The inner band further comprises a wear plate designed to sustain the majority of wear for less costly maintenance and repair of injection heads.

Abstract: A variable sized coiled tubing counter is described herein. The variable sized coiled tubing counter includes a plurality of rollers. At least one roller is a floating roller which is allowed to travel and may be connected to a tension assembly. The variable sized tubing counter typically includes a counter which is rotationally connected to a floating counting roller using a somewhat flexible axle. As coiled tubing passes through the tubing counter, the length of tubing is determined based on the number of rotations of the counting roller. The use of floating, tensioned rollers allows the disclosed tubing counter to be utilized with multiple diameters of coiled tubing without significant adjustment to the tubing counter or changing components of the tubing counter.

Abstract: A system is provided for injecting coiled tubing (CT) into and out of a wellbore. In embodiments, separate injector and reel units are provided releasing constraints on CT size and length. The injector unit is fit with an extendible mast for handling larger bottom hole assemblies and fit with a rotating gooseneck for accepting CT from alternate arrangements of the reel unit. The mast is reinforced to resist CT loading. The capacity of the reel is maximized for the reel unit transport envelope. The reel is rotated using an offset drive engaging a bounding reel flange, such as engaging drive and bull gears. A generally radial displacement of the drive from the reel permits replacement of the entire reel.

Abstract: An extended reach tool includes two or more separate flow paths, wherein each of the flow paths has multiple hollow chambers connected in series. Each of the hollow chambers includes a first constricted chamber with a fluid entry, a first expansion chamber located adjacent to the lower end of the first constricted chamber, and a second constricted chamber with the upper end of connected to the lower end of the first expansion chamber. A separate second expansion chamber is connected to the lower end of a plurality of the second constricted chambers. A single port is located adjacent to the lower end of the second expansion chamber.

Abstract: A control system for moving a bottom hole assembly at an end of a coiled tubing string in a wellbore includes a controller configured to move the bottom hole assembly at an initial rate, unless the controller determines that moving the bottom hole assembly at the initial rate causes a predetermined threshold parameter to be reached, whereupon the controller is configured to default to moving the bottom hole assembly at a safe rate.

Abstract: An extended reach tool includes two or more separate flow paths, wherein each of the flow paths has multiple hollow chambers connected in series. Each of the hollow chambers includes a first constricted chamber with a fluid entry, a first expansion chamber located adjacent to the lower end of the first constricted chamber, and a second constricted chamber with the upper end of connected to the lower end of the first expansion chamber. A separate second expansion chamber is connected to the lower end of a plurality of the second constricted chambers. A single port is located adjacent to the lower end of the second expansion chamber.

Abstract: A clutch mechanism includes a meshing arrangement between a first plurality of teeth on a first component coupled to a driven shaft and a corresponding second plurality of teeth on a second component coupled to a driving shaft.

Abstract: An oilfield assembly including a pump in fluid communication with a string of coiled tubing on a tubing reel through a coiled tubing swivel assembly, includes a fluid inlet segment coupled to a swivel body having a central axis, and a rotatable hollow shaft having a portion that extends axially within the swivel body, wherein the fluid inlet segment, swivel body and hollow rotatable shaft form a conduit for passage of a pumped substance to the tubing reel from the pump. The rotatable shaft includes a first end attachable to the tubing reel, and a distal second end, at least part of which is configured to engage a corresponding indentation in the body, thereby preventing direct contact between the distal end of the shaft and the pumped substance.

Abstract: A coiled tubing transport unit includes a coiled tubing reel unit, a guide sleeve coupled to the coiled tubing reel unit, and a corresponding arm coupled to the coiled tubing transport unit, wherein the arm is retractable or extendable from the guide sleeve, and a hydraulic cylinder coupled between the coiled tubing reel unit and the transport unit. The arm retracts or extends from the guide sleeve when the hydraulic cylinder is actuated to push or pull against and move the coiled tubing reel unit along a length of the coiled tubing transport unit.